func buildTrace(cpu, mem []uint64, duration time.Duration) []*info.ContainerStats {
if len(cpu) != len(mem) {
panic("len(cpu) != len(mem)")
}
ret := make([]*info.ContainerStats, len(cpu))
currentTime := time.Now()
var cpuTotalUsage uint64 = 0
for i, cpuUsage := range cpu {
cpuTotalUsage += cpuUsage
stats := new(info.ContainerStats)
stats.Cpu = new(info.CpuStats)
stats.Memory = new(info.MemoryStats)
stats.Timestamp = currentTime
currentTime = currentTime.Add(duration)
stats.Cpu.Usage.Total = cpuTotalUsage
stats.Cpu.Usage.User = stats.Cpu.Usage.Total
stats.Cpu.Usage.System = 0
stats.Cpu.Usage.PerCpu = []uint64{cpuTotalUsage}
stats.Memory.Usage = mem[i]
stats.Network = new(info.NetworkStats)
stats.Network.RxBytes = uint64(rand.Intn(10000))
stats.Network.RxErrors = uint64(rand.Intn(1000))
stats.Network.TxBytes = uint64(rand.Intn(100000))
stats.Network.TxErrors = uint64(rand.Intn(1000))
ret[i] = stats
}
return ret
}
// Convert libcontainer stats to info.ContainerStats.
func toContainerStats(libcontainerStats *libcontainer.ContainerStats) *info.ContainerStats {
s := libcontainerStats.CgroupStats
ret := new(info.ContainerStats)
ret.Timestamp = time.Now()
if s != nil {
ret.Cpu.Usage.User = s.CpuStats.CpuUsage.UsageInUsermode
ret.Cpu.Usage.System = s.CpuStats.CpuUsage.UsageInKernelmode
n := len(s.CpuStats.CpuUsage.PercpuUsage)
ret.Cpu.Usage.PerCpu = make([]uint64, n)
ret.Cpu.Usage.Total = 0
for i := 0; i < n; i++ {
ret.Cpu.Usage.PerCpu[i] = s.CpuStats.CpuUsage.PercpuUsage[i]
ret.Cpu.Usage.Total += s.CpuStats.CpuUsage.PercpuUsage[i]
}
ret.DiskIo.IoServiceBytes = DiskStatsCopy(s.BlkioStats.IoServiceBytesRecursive)
ret.DiskIo.IoServiced = DiskStatsCopy(s.BlkioStats.IoServicedRecursive)
ret.DiskIo.IoQueued = DiskStatsCopy(s.BlkioStats.IoQueuedRecursive)
ret.DiskIo.Sectors = DiskStatsCopy(s.BlkioStats.SectorsRecursive)
ret.DiskIo.IoServiceTime = DiskStatsCopy(s.BlkioStats.IoServiceTimeRecursive)
ret.DiskIo.IoWaitTime = DiskStatsCopy(s.BlkioStats.IoWaitTimeRecursive)
ret.DiskIo.IoMerged = DiskStatsCopy(s.BlkioStats.IoMergedRecursive)
ret.DiskIo.IoTime = DiskStatsCopy(s.BlkioStats.IoTimeRecursive)
ret.Memory.Usage = s.MemoryStats.Usage
if v, ok := s.MemoryStats.Stats["pgfault"]; ok {
ret.Memory.ContainerData.Pgfault = v
ret.Memory.HierarchicalData.Pgfault = v
}
if v, ok := s.MemoryStats.Stats["pgmajfault"]; ok {
ret.Memory.ContainerData.Pgmajfault = v
ret.Memory.HierarchicalData.Pgmajfault = v
}
if v, ok := s.MemoryStats.Stats["total_inactive_anon"]; ok {
ret.Memory.WorkingSet = ret.Memory.Usage - v
if v, ok := s.MemoryStats.Stats["total_active_file"]; ok {
ret.Memory.WorkingSet -= v
}
}
}
// TODO(vishh): Perform a deep copy or alias libcontainer network stats.
if libcontainerStats.NetworkStats != nil {
ret.Network = *(*info.NetworkStats)(libcontainerStats.NetworkStats)
}
return ret
}